Requesters of CCC-545/SCALE4.4a or CCC-702/ORIGEN-ARP who wish to request DLC-210/
CANDU-AECL data libraries will be exempt from the transmittal fee for CANDULIB. Please complete
the on-line order form on the RSICC website for the packages you wish and state that you request an
exemption for the CANDULIB-AECL package.

In 1995, updated ORIGEN-S cross-section libraries were created as part of a program to upgrade and
standardize the computer codes and nuclear data employed for used fuel characterization. This effort was
funded through collaboration between Atomic Energy of Canada Limited and the Canadian Nuclear Power
Utilities, under the CANDU Owners Group (COG). The updated cross sections were generated using the
WIMS-AECL lattice code and ENDF/B-V and -VI based data to provide cross section consistency between
reactor physics codes and used fuel characterization codes.

5. APPLICATION OF THE DATA

The libraries in this data collection are designed for characterizing used fuel from CANDU pressurized
heavy water reactors. Two libraries are provided: one for the standard 28-element fuel bundle design, the
other for the 37-element fuel bundle design. The libraries were generated for typical reactor operating
conditions. The libraries are designed for use with the ORIGEN-S isotope generation and depletion code.
The libraries may also be used with the ARP (Automated Rapid Processing) utility of SCALE, which
performs interpolation of the library data to create problem-dependent libraries for an ORIGEN-S
depletion analysis.

6. SOURCE AND SCOPE OF DATA

The CANDU libraries are updated with cross sections from a variety of different sources. Capture
and fission cross sections were obtained from collapsed 89-group ENDF/B-V and -VI data from the
WIMS-AECL lattice code. Other reaction cross sections were obtained from the SCALE 27-group
ENDF/B-IV data. In all, cross sections for more than 200 important actinides and fission products were
updated with burnup-dependent data. The source of the nuclear decay data and cross sections not updated
were the base ORIGEN-S libraries distributed with the SCALE 4.2 code package.

The libraries are distributed in a card-image format for platform compatibility. They must be
converted to binary library format using the OSBICO utility of SCALE. (See example of input included
in the README file).

9. TYPICAL RUNNING TIME

Not applicable.

10. REFERENCES

a. Documentation available with library

I. C. Gauld, P. A. Carlson, and K. A. Litwin, "Production and Validation of ORIGEN-S Cross-Section
Libraries for CANDU Reactor Fuel Studies," AECL report RC-1442, COG-I-95-200 (October 1995).
This document is released with the understanding that it has not been edited for widespread distribution.